PACS: 42.79.Kr

Development and investigation of LC light shutters for a welding automatic mask
Yu. Kolomzarov, P. Oleksenko, V. Sorokin, P. Tytarenko, R. Zelinskyy

V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41, prospect Nauky, 03028 Kyiv, Ukraine
Phone: 525-3126. Fax: 525-5785.
E-mail: zelinsky@isp.kiev.ua

Abstract. Elements of technology to produce liquid crystal (LC) light shutters for a welding automatic mask with the built-in transparent heater for operating LC layer were developed. Experimental samples of light shutters were created using the developed technology, and their parameters and characteristics were investigated. Measuring the “switch-on” times of the created light shutters has shown that the transition from the transparent state to the opaque one within the temperature range from –20 up to +50 °C lasts less than 1.5 ms. This value meets the requirements of international standards.

Keywords: light shutter, welding mask, liquid crystal.

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